graves



(No Model.)

i 2 Sheets-Sheet *1.

"G. s. GRAVES.

STARGH SEPARATOR.

Patented J an. 9, 1883.

HEILI- (No Model.)

2 Sheets-Sheet 2.

G. s. GRAVES..

STARGH ,sBPARAToR Patented Jan. 9', v1883.

Pho

Nrren STATES PATENT ,GILBERT S. GRAVES, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALFTO 'HARRY Hannut,

OF SAME PLACE.

sTARcH-SEPARATQR.

SPECIFICATION forming part of Letters Patent No.v270,304, dated January 9, 1883,

` Application filed November-3, 1882. (No model.)

Io all whoml it may concern:

Be it known that I, GILBERTS. GRAVES, a citizen ot' the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Starch-Separators and I do hereby declare the following t be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it 1o` appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form apart of this specification. My invention relates more particularly to 'certainimprovements in starch-separators for which Letters Patent No. 256,315 were granted to myself and Jacob Heede on the 11th day of April, 1882. In such patent was shown asieve provided with transverse strips or gutters, 2o which were adapted to receive the'impact of the fallingwater, and which divided the boltingcloth into separate and independent sections. yA receptaclebelow and separate `from the sieve received all the material which passed through the bolting-cloth.

One ot the objects of my present invention 'is to provideimproved means for collecting separately the diierent gravities of starch-liquor which pass through different sections of the 3o boltingcloth, it being understood that the starch-liquor is less diluted with the sprayingwater at the upper portion of the inclined sieve than at the lower port-ion. Another object of my invention is to provide means for taking thcdifferent gravities of starch-liquor which have been separated at'ter passing through the bolting-cloth and combining or reuniting them into diiierent degrees of consistency.

` 'lo these ends my invention consists, first, in

4o providing the vibrating sieve upon its under Vside with a series of two or more independent trays or receptacles, which are removably secured upon such underiside,and which partake of the vibratory motion of the sieve, each tray or receptacle being provided with a separate discharge pipe or opening; and, second,in providing below the discharge pipes or openings in the trays a common trough or receptacle,

divided by adjustable or removable partitions 5o or gates into separate sections, each of which sections being provided with a separate outlet, also having an adjustable or removable partition or gate; third,in other details oi' construction, which will be more fully hereinafter 'described and claimed.

I will now proceed to more particularly describe the manner in which I have carried out my invention.

In the drawings, Figure lis a side elevation of my improved form ot'starch-separator. Fig. 6o 2 is a top plan view of Fig. l with the spraying device removed. Fig. 3 is a vertical longitudinal section of Fig. 1. Fig. 4 is a vertical transverse section ot' Fig. 1, taken 'through the sieve. Figs. 5, 6, and 7 are viewsof detached details. Fig.8isapartialview,enlarged,show ing mode of adjusting the trays or receptacles upon the bottom of the sieve; and Figs. Q and4 10 are sectional views of modified details. 7o

Referring to the drawings, a is the rectair gular sieve-frame, having the corner-braces a and cross-pieces c2. The bolting clot-h is applied to the under side ofthe sieve in separate sections b, having the transverse channels or troughs b', preferably of wood, between the sections b of boltingcloth.

c -is an openingin the lower end `of the sieveframe a, through which the residue which re mains upon the sieve is discharged. 8o

d are perforated water-pipes, arranged horizontally in a transverse direction over the troughs b',so that the sprays of water will fall upon the troughs b and not upon the boltingcloth. V These pipes d are supplied with water from the pipe d by the connectingpipes d2 ctdf.

The pitmanE impartsa shaking motion to the sieve-frame by means of any suitable motive power, and is removably attached thereto Y by the eye E.

F.3 E3 are braces for imparting additional stability to the upper end ot1 the `sieve-frame.

f represents theposts, four in number, havingtherollersf in theirupperends, upon which the sieve-frame is reciprocated by means lof guide-plates f2, litted to the sides ofthe sieveframe. The rollers f are grooved for the reception ot' ribs upon the pla-tes f2.

g is a conveyer-trough for the reception of center ot' one of the trays or receptacles of the 6 5 the residue from the sieve. ico

The parts thus far described are the saine as in the patent to myself and Jacob Heede, hereinbefore mentioned, and with these parts I have arranged and combined my improvements in a manner which I will now proceed to more particularly describe.

h represents the trays or receptacles, which are removably attached to the under side ofthe sieve-frame a. These trays, as clearly shown in Fig. 6, are slightly pyramidal in form, having the i'our sides h converging downwardly.

to the discharge-outlet h2.

h3 isa ilange around the edges of the tray, and h4 is a bar rigidly secured across the tray, and which serves, when the tray is in position under the sieve, to support the bolting-cloth bfabove it. The lower cross-pieces, 7c la, at each j end of the under side of the sieve-frame, and

the troughs b', are provided with transverse grooves l; and Z (see Fig. 4) isalongitudinal groove in one of the side pieces, a, of the sieveframe. Ihe trays are placed in position by sliding the flanges h3 into the grooves l and Z, and when in position are held against lateral displacementby thepiecesm,oneofwhichisshown in position in Fig. 8, and separately in a reversed inverted position in Fig. 7, to show the groove m', into which the remaining ange of the tray lits. This piece is held in position by the buttons m2 m2. Each section, b, of boltingcloth between the troughs b has a separate tray, lt, located beneath it. In Fig. 9 I have shown a modified form of groove, in which, instead of the groove being made directly in the wooden trough proper, l have secured to the sides of the trough', underneath the bolting-cloth, the metal strips n, having the grooves nf cut therein. This construction is of a more durable nature tha-n that shown in Fig. 3. A further lnodicationis shown in Fig. 10, in which the flange h3 ofthe tray is turned up at right angles, as shown at o, and the groove for'its reception is made ot' corresponding form. This construction will eti'ectually prevent any leakage ofthe trays at their edges.

Underneath and in line with the outlets h4 of theV trays l1, I have arranged the narrow trough 19having the sliding partitions or gates p', dividing the trough p into a number of sections, 92 equal to the number of the outlets h4' l 1 7 and each ot' these sectionsp2 is provided with an auxiliary trough or outlet, p3, provided'with .a sliding partition or gate, p4. The gates p in the trough p, being underneath the sieve, are for convenience of adjustment provided with ythe levers q, which extend from the gates p out beyond the sieve-frame, as clearly shown in Fig 4.

Having thus described my improved apparatus, I will now brieiiy set forth its mode of operation.

Ihe starch-liquor, as it passes down through the different sections ot' bolting-cloth between the troughs b', is caught by the trays h, and from thence discharged into the troughp beneath. The starch -liquor collected by the tray at the highest end of the sieve is not diluted accomplished. The ditlerentgravities ot'starch? liquor can, if desired, be received separately in the different sections p2 of' the trough p by shutting down the gates p', and conducted through the separate auxiliarytroughs p3 to the points desired by raising the gates p4. If, however, from the peculiar and varying nature of the starch-liquor which is passed through the sieve, it is deemed desirable to reunite or combine the several gravities to form dii'erent degrees of consistency in the starch-liquor, this can be quickly and easily accomplished by aproper adjustment ot' the two series of gates, ,pan d p4. Forinstance, the starch-liquor which passes through the iirst three sections ot' bolting-cloth can be reunited after such passage and conducted to a common receptacle by raising the first two gates in the trough p and closing any two ofthe iirst three gates p4; and other combinations can be effected by a corresponding maniliulation ot' the two systems of gates.

I am aware that it is not broadly novel-to separate the different grades of' starch-liquor after its passage through the bolting-cloth of the sieve or separator, and I do not lay claim to such broad idea; but v What I do claim is- 1. In astarchseparator,avibratingsieve provided upon its under side with a series of two or more independent trays or receptacles provided with suitable outlets and removably secured to such sieve, as and for the purpose stated. i

2. In a starch-separator, a vibrating sieve composed of two or more sections of boltingcloth and one or more intermediate troughs or strips, and yprovided on its under side with a separate tray or receptacle for each section of bolting-cloth, such tray or receptacle being provided with a suitable outlet and removably secured to such sieve, as and for the purpose stated. 3.- In a starch-separator, a main trough for receiving the previously-separated grades of starch-liquor, provided with a series of ad justablegates or partitions, and having auxiliary troughs leading therefrom, each provided with an adjustable gate or partition, whereby the previouslyseparated gravities of starch.- liquor can be reunited or combined, as desired, substantially as shown and described.

4. ln a starch-separator, the combination, with a vibrating sieve provided upon its under side with a series of two or more independent.'v

trays or receptacles having suitable outlets andremovably secured to such sieve, of a main trough for receiving the contents of the trays or receptacles, such trough being provided with a series of adjustable gates or partitions and having'auxiliary troughs leading therefromeach provided. Awith an adjustable gate or partition, substantially as and for the purpose stated. y

5. In a starch-separator, the combination, with a vibrating vsieve composed of tu'o or more sections of bolting -cioth and one or more intermediate troughs or strips, and provided on its under side with a separate tray or receptacle for each section ofl bolting-cloth, such tray or receptacle being provided with a suitable outlet and removably secured to such sieve, ot' a main trough for receiving the couteuts'of the trays orreceptacles, such trough being provided with aseries oi' adj 'ustable gates or partitions, and having auxiliary troughs leading` therefrom, each provided with an adjustable gate or partition, substantially as and for thepurpose stated.

6. In a starch-separator, the combination, with the vibrating sieve having the sections b of boltingcloth and the troughs or strips b', of the independent trays or receptacles h, having the outlets h4 removably secured to the under side of the sieve, as and for the purpose stated.

7. In a starch-separator, the main trough p,

located under the sieve, and provided with the adjustable gates or partitions p', and having the auxiliary ltroughs p3 leading therefrom,-

eaeh having au adjustable gate or partition, p4, as and for the purpose stated.

8.` In a starch-separator, the main trough p, located under the sieve, and provided with the adjustable gates o r partitions 19', adapted by suitable means to be operated from one side of the sieve, the main trough p being provided with auxiliary troughs p3, leadingtherefrom,

each having au adjustable gate or partition, p, as and for the purpose stated. l

9. In a starch-separator, the combination ot' the sieve having the sections b of boltingcloth, the troughs b', and the trays or receptacles It, having the outlets h', with the inain trough p, having the adjustable gates p', and the auxiliary troughs p3, having the gates p4, substantially as and for the purpose stated.

10. In a starchsepa rator, the tray or receptacle h, havingthe converging sides It', outlet h2, iianges h3, and cross-bar h4, adapted to be removably secured in grooves in the sieve- Y frame, substantially as shown and described.

In testimonywhereof I have signed my naine to this specification iu the presence ot' two subscribing Witnesses. v GILBERT S. GRAVES.

Witnesses: j

` O'r'ro HoDDioK, W. T. MILLER. 

